{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:13.055505", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2019-Jul-19_to_2019-Jul-21_285.0_45.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2019070002498}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "July 19 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 21 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 58550.769304359696}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Canada"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 45.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 285.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "285.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 281.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 285.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.65, 45.25], [-78.75, 45.5], [-78.65, 45.75], [-78.75, 46.0], [-78.65, 46.25], [-78.75, 46.5], [-78.53, 47.03], [-78.0, 47.25], [-77.75, 47.15], [-77.5, 47.25], [-77.25, 47.15], [-77.0, 47.25], [-76.75, 47.15], [-76.5, 47.25], [-76.25, 47.15], [-76.0, 47.25], [-75.47, 47.03], [-75.25, 46.5], [-75.37, 46.2], [-74.97, 46.03], [-74.82, 45.68], [-74.47, 45.53], [-74.25, 45.0], [-74.47, 44.47], [-75.0, 44.25], [-75.25, 44.35], [-75.32, 44.32], [-75.47, 43.97], [-76.0, 43.75], [-76.25, 43.85], [-76.5, 43.75], [-76.75, 43.85], [-77.0, 43.75], [-77.25, 43.85], [-77.5, 43.75], [-77.75, 43.85], [-78.0, 43.75], [-78.53, 43.97], [-78.75, 44.5], [-78.65, 44.75], [-78.75, 45.0], [-78.65, 45.25]]]]}, "2019-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.65, 45.25], [-78.75, 45.5], [-78.65, 45.75], [-78.75, 46.0], [-78.65, 46.25], [-78.75, 46.5], [-78.53, 47.03], [-78.0, 47.25], [-77.75, 47.15], [-77.5, 47.25], [-77.25, 47.15], [-77.0, 47.25], [-76.75, 47.15], [-76.5, 47.25], [-76.25, 47.15], [-76.0, 47.25], [-75.47, 47.03], [-75.25, 46.5], [-75.37, 46.2], [-74.97, 46.03], [-74.82, 45.68], [-74.47, 45.53], [-74.25, 45.0], [-74.47, 44.47], [-75.0, 44.25], [-75.25, 44.35], [-75.32, 44.32], [-75.47, 43.97], [-76.0, 43.75], [-76.25, 43.85], [-76.5, 43.75], [-76.75, 43.85], [-77.0, 43.75], [-77.25, 43.85], [-77.5, 43.75], [-77.75, 43.85], [-78.0, 43.75], [-78.53, 43.97], [-78.75, 44.5], [-78.65, 44.75], [-78.75, 45.0], [-78.65, 45.25]]]]}, "2019-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.65, 45.25], [-78.75, 45.5], [-78.65, 45.75], [-78.75, 46.0], [-78.65, 46.25], [-78.75, 46.5], [-78.53, 47.03], [-78.0, 47.25], [-77.75, 47.15], [-77.5, 47.25], [-77.25, 47.15], [-77.0, 47.25], [-76.75, 47.15], [-76.5, 47.25], [-76.25, 47.15], [-76.0, 47.25], [-75.47, 47.03], [-75.25, 46.5], [-75.37, 46.2], [-74.97, 46.03], [-74.82, 45.68], [-74.47, 45.53], [-74.25, 45.0], [-74.47, 44.47], [-75.0, 44.25], [-75.25, 44.35], [-75.32, 44.32], [-75.47, 43.97], [-76.0, 43.75], [-76.25, 43.85], [-76.5, 43.75], [-76.75, 43.85], [-77.0, 43.75], [-77.25, 43.85], [-77.5, 43.75], [-77.75, 43.85], [-78.0, 43.75], [-78.53, 43.97], [-78.75, 44.5], [-78.65, 44.75], [-78.75, 45.0], [-78.65, 45.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.359999316353992}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.762400438324249}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.051833693725655, 25.78251065376594, 24.679192765080586]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.239842702557553, 27.6812754355102, 26.870404149844774]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.5575115708973, 5.330655015294856, 4.39903472878059]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.359999316353992, 6.119608158786946, 5.464018406958246]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.607422034649039, 1.8918610065920105, 1.595339128422037]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.059818181556083, 2.222026294982561, 2.0507042053220537]}}